This database contains information on individual sea lions that were marked or handled from 1985-2018. Individuals were handled for various projects including vital rate, telemetry and health studies. Many of the animals were either flipper tagged or branded. Capture techniques vary including; hand-capture of pups, hoop netting and underwater captures of juveniles, dart-delivered sedation of adult females, and floating pen capture of sub-adult and adult males. This dataset is associated with NMFS InPort Metadata Record #17918

This dataset contains information regarding the sighting and capture of Steller sea lions marked in Alaska from 1987 to 2014. Marks are seen and documented in a variety of ways; remote cameras, dedicated vessel- and land-based surveys, recaptures of Steller sea lions, aerial survey photographs, strandings, and opportunistic sightings sent in from the public.

These data were used for an analysis of Steller sea lion pup health and condition by Lander et al. (2013). Serum chemistry and hematological values were measured by analysis of blood samples taken from 1,231 Steller sea lion pups (

This collaborative study between the National Oceanic and Atmospheric Administration National Marine Fisheries Service, Sea Mammal Research Unit, and Fisheries and Oceans Canada investigated the relationship between diet and population trends of Steller sea lions in the Aleutian Islands. During this study, data from a total of 3,118 samples collected throughout the year in the Aleutian Islands from 1990-2012 (including 399 samples collected during this study at 14 sites (NPRB #1114: 345 in March 2012 and 54 in summer 2012) and 305 samples collected during NPRB #720) were analyzed to characterize the spatial, temporal and seasonal variation in sea lion diet and examined the relationship between population trend and diet diversity in both seasons and throughout the year. Additionally, a combination of dietary information methods, including traditional hard part identification and a molecular methodology developed by Tollit et al. (2009) that found DNA extracted from the soft scat of wild Steller sea lions, were used to sub-sample scat samples to identify prey occurrences that were undetected by hard parts alone.